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Proof step 4 from proof unchanged-validref (previous step)

st1[r -- _type] .type ≤ ty, unchanged(str, r, st, st1), st[r -- _type] .type ≤ ty, junkref(str, r, st1) ⊦ r = jvmref, junkref(str, r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[x0lemmaarg: spec-name: instance-name: lemma-name: unchanged-junkref antecedent: succedent: ¬ junkref(str, r, st) ∧ unchanged(str, r, st, st1) → ¬ junkref(str, r, st1) substlist: [str, r, st, st1] → [str, r, st, st1] add preconditions?: F is rewrite lemma?: T current spec?: T rotate lemma?: F replace all?: T paths: ((0, 0, 3)) dummy: () ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (str, r, st, st1)]]